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问题 选择题

生活中常有“扬汤止沸”和“釜底抽薪”的说法．前者是指把锅里沸腾的水舀起来再倒回去，后者是指从锅下抽掉燃着的木柴．应用热学知识分析，下列说法正确的是（　　）

A．两者都只能暂时止沸

B．两者都能彻底止沸

C．前者只能暂时止沸，后者能彻底止沸

D．前者能彻底止沸，后者只能暂时止沸

答案

扬汤止沸”由于散热，水的温度达不到沸点，所以不沸腾，但继续加热温度还是能达到沸点的，所以还能沸腾，故“扬汤止沸”只能暂时使水停止沸腾．“釜底抽薪”水不能继续吸热，所以能彻底地使水停止沸腾．

故选C．

完形填空
完形填空

     On the first day of my school life in the USA, I showed a great interest in my marketing class. My
teacher, Mrs. Tolman, suggested I  __1__  a national marketing club called DECA attracting many
students with talent and interest in  __2__. So I did.    
     The first  __3__  was to raise money for the marketing competition later in the year by selling
candles. Mrs. Tolman said the competition was due in a week and that 40 percent of the  __4__ would
go into my personal account.    
     At the beginning, I tried to sell some candles to my host mom. She said that if I could   __5__  
confidence and do a wonderful sales presentation, she would certainly buy some. I started my  __6__    
with a firm handshake. Then I introduced all the different kinds of candles and the special sales I could
offer and  __7__  her that our candles were the best choices for gifts and home decorations. Finally
she bought three candles.    
     Greatly  __8__  I decided to sell my candles around the neighborhood. On Saturday morning, with
great courage, I knocked at the door of my first potential  __9__.    
     "I'm a student at Skyline High School and we are __10__  money for DECA. I'm trying to sell..."  
      "Not today, sorry, "  the man interrupted me and __11__  the door.    
     Embarrassed, I walked away and said to myself the __12__ thing that might happen was being
refused like that again. I couldn't even count how many times I was __13__  with reasons like "Not
today" , "I don't have any __14__ money right now" or "I just bought some". __15__, I had to continue
with the day. __16__, a woman kindly bought nearly  $ 60 worth of candles. I couldn't even hide my 
__17__  and said "Thank you very much" to her with a bow.    
     After a  __18__  hard work, I turned in my $408 worth of sales of candles, which gave me $163 in
my own account. I was __19__  to find out I was the second highest seller in all classes.    
     It was the first time that I had worked as a sales person. This experience let me know that __20__ 
difficulties was only wasting time and a barrier in my way to success.

( )1. A. hold          
( )2. A. business      
( )3. A. chance        
( )4. A. income        
( )5. A. express      
( )6. A. presentation  
( )7. A. told          
( )8. A. puzzled      
( )9. A. buyer        
( )10. A. lending      
( )11. A. opened      
( )12. A. worst        
( )13. A. allowed      
( )14. A. more        
( )15. A. However      
( )16. A. So          
( )17. A. anger        
( )18. A. week's      
( )19. A. puzzled      
( )20.A. overcoming  		B. join          
B. English        
B. way            
B. candles        
B. show          
B. business      
B. convinced      
B. surprised      
B. seller        
B. raising        
B. knocked        
B. uneasy        
B. permitted      
B. extra          
B. So            
B. Secondly      
B. embarrassment  
B. hour's        
B. surprised      
B. dealing with   		C. build        
C. math        
C. challenge  
C. business    
C. make        
C. club        
C. explained    
C. shocked      
C. business man
C. returning    
C. burst into  
C. best        
C. refused      
C. little      
C. Therefore    
C. Firstly      
C. happiness    
C. year's      
C. calm        
C. accepting    		D. set          
D. sports        
D. choice        
D. expense      
D. expect        
D. interest      
D. requested    
D. encouraged    
D. shop keeper  
D. borrowing    
D. shut          
D. unhappiest    
D. demanded      
D. left          
D. For          
D. Finally      
D. sad          
D. month's      
D. lucky        
D. worrying about
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单项选择题

房地产经纪信息常常可以重复使用，而且随着信息的累积，将会有新的价值产生，这是指房地产经纪信息的( )特征。

A．多维性

B．积累性

C．时效性

D．增值型
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